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Finding the Fourth Proportional to 57,564.60, 79,442.92 and 34,905.66

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Solution

The fourth proportional to 57,564.60, 79,442.92 and 34,905.66 is: 48,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,564.60 : 79,442.92 = 34,905.66 : x
  2. Step 2: Convert to fraction form
    57,564.60/79,442.92 = 34,905.66/x
  3. Step 3: Cross multiply
    57,564.60x = 79,442.92 × 34,905.66
  4. Step 4: Simplify right side
    57,564.60x = 2,773,007,554.93
  5. Step 5: Solve for x
    x = 2,773,007,554.93/57,564.60
  6. Step 6: Final answer
    x = 48,172.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.